The first time I swore in therapy was to actually tell t "F*** Y** and your beliefs that my life was worth living". I was reading to her a journal entry and got to that statement and stopped. It took a good 5-10 mins before I could say it, we even back tracked on why whatever I was struggling with was a struggle before I went back to the entry reread the previous statement and plowed right through that line. And then I slightly disassociated for the rest of the session and was not able to completely track what she was saying. She did tell me they are powerful words that convey lots of emotions and she too repeated them to try to normalize their usage. Now, well I am not a huge user of profanity in my life so I don't say any of them that often. S*** is the most common. I have cussed her out one other time, again in a letter when I was really pissed off at her. This time I didn't read it to her but had her read it.